/* Copyright (C) 2004 - 2006  db4objects Inc.  http://www.db4o.com

This file is part of the db4o open source object database.

db4o is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL 
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.

db4o is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */
namespace Db4objects.Db4o.Foundation
{
	public class PersistentTimeStampIdGenerator
	{
		private bool _dirty;

		private readonly Db4objects.Db4o.Foundation.TimeStampIdGenerator _generator = new 
			Db4objects.Db4o.Foundation.TimeStampIdGenerator();

		public virtual long Next()
		{
			_dirty = true;
			return _generator.Generate();
		}

		public virtual void SetMinimumNext(long val)
		{
			if (_generator.SetMinimumNext(val))
			{
				_dirty = true;
			}
		}

		public virtual long LastTimeStampId()
		{
			return _generator.Last();
		}

		public virtual bool IsDirty()
		{
			return _dirty;
		}

		public virtual void SetClean()
		{
			_dirty = false;
		}
	}
}
